I had the pleasure of talking to Robert Blumen, at Software Engineering Radio, about Drools and Rule Engines in general.
http://www.se-radio.net/2017/08/se-radio-episode-299-edson-tirelli-on-rules-engines/
If you don’t know this podcast, I highly recommend their previous episodes as well. Very informative, technically oriented podcast.
Hope you enjoy,
Edson